Q^2+12Q+81=2Q+12

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Solution for Q^2+12Q+81=2Q+12 equation:


Simplifying
Q2 + 12Q + 81 = 2Q + 12

Reorder the terms:
81 + 12Q + Q2 = 2Q + 12

Reorder the terms:
81 + 12Q + Q2 = 12 + 2Q

Solving
81 + 12Q + Q2 = 12 + 2Q

Solving for variable 'Q'.

Reorder the terms:
81 + -12 + 12Q + -2Q + Q2 = 12 + 2Q + -12 + -2Q

Combine like terms: 81 + -12 = 69
69 + 12Q + -2Q + Q2 = 12 + 2Q + -12 + -2Q

Combine like terms: 12Q + -2Q = 10Q
69 + 10Q + Q2 = 12 + 2Q + -12 + -2Q

Reorder the terms:
69 + 10Q + Q2 = 12 + -12 + 2Q + -2Q

Combine like terms: 12 + -12 = 0
69 + 10Q + Q2 = 0 + 2Q + -2Q
69 + 10Q + Q2 = 2Q + -2Q

Combine like terms: 2Q + -2Q = 0
69 + 10Q + Q2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-69' to each side of the equation.
69 + 10Q + -69 + Q2 = 0 + -69

Reorder the terms:
69 + -69 + 10Q + Q2 = 0 + -69

Combine like terms: 69 + -69 = 0
0 + 10Q + Q2 = 0 + -69
10Q + Q2 = 0 + -69

Combine like terms: 0 + -69 = -69
10Q + Q2 = -69

The Q term is 10Q.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10Q + 25 + Q2 = -69 + 25

Reorder the terms:
25 + 10Q + Q2 = -69 + 25

Combine like terms: -69 + 25 = -44
25 + 10Q + Q2 = -44

Factor a perfect square on the left side:
(Q + 5)(Q + 5) = -44

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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